1.\" 2.\" Copyright (c) 2009 Sam Leffler, Errno Consulting 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd August 4, 2009 29.Dt IEEE80211_DDB 9 30.Os 31.Sh NAME 32.Nm ieee80211_ddb 33.Nd 802.11 ddb support 34.Sh SYNOPSIS 35.Bd -ragged 36.Cd options DDB 37.Ed 38.Pp 39.Bd -ragged 40.Cd show vap [addr] 41.Cd show all vaps 42.Cd show com [addr] 43.Cd show sta [addr] 44.Cd show statab [addr] 45.Cd show mesh [addr] 46.Ed 47.Sh DESCRIPTION 48The 49.Nm net80211 50layer includes 51.Xr ddb 4 52support for displaying important data structures. 53This is especially important because wireless applications are often 54built for embedded environments where cross-machine or post-mortem 55debugging facilities like 56.Xr kgdb 1 57are infeasible. 58.Pp 59The most commonly used command is 60.Bd -literal -offset indent 61show all vaps/a 62.Ed 63.Pp 64which dumps the contents of all 65.Vt ieee80211vap , 66.Vt ieee80211com , 67and 68.Vt ieee80211_node 69data structures in the system. 70.Sh SEE ALSO 71.Xr ddb 4 , 72.Xr ieee80211 9 73